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- // https://www.freedesktop.org/software/systemd/man/systemd.syntax.html
- (function (Prism) {
- var comment = {
- pattern: /^[;#].*/m,
- greedy: true
- };
- var quotesSource = /"(?:[^\r\n"\\]|\\(?:[^\r]|\r\n?))*"(?!\S)/.source;
- Prism.languages.systemd = {
- 'comment': comment,
- 'section': {
- pattern: /^\[[^\n\r\[\]]*\](?=[ \t]*$)/m,
- greedy: true,
- inside: {
- 'punctuation': /^\[|\]$/,
- 'section-name': {
- pattern: /[\s\S]+/,
- alias: 'selector'
- },
- }
- },
- 'key': {
- pattern: /^[^\s=]+(?=[ \t]*=)/m,
- greedy: true,
- alias: 'attr-name'
- },
- 'value': {
- // This pattern is quite complex because of two properties:
- // 1) Quotes (strings) must be preceded by a space. Since we can't use lookbehinds, we have to "resolve"
- // the lookbehind. You will see this in the main loop where spaces are handled separately.
- // 2) Line continuations.
- // After line continuations, empty lines and comments are ignored so we have to consume them.
- pattern: RegExp(
- /(=[ \t]*(?!\s))/.source +
- // the value either starts with quotes or not
- '(?:' + quotesSource + '|(?=[^"\r\n]))' +
- // main loop
- '(?:' + (
- /[^\s\\]/.source +
- // handle spaces separately because of quotes
- '|' + '[ \t]+(?:(?![ \t"])|' + quotesSource + ')' +
- // line continuation
- '|' + /\\[\r\n]+(?:[#;].*[\r\n]+)*(?![#;])/.source
- ) +
- ')*'
- ),
- lookbehind: true,
- greedy: true,
- alias: 'attr-value',
- inside: {
- 'comment': comment,
- 'quoted': {
- pattern: RegExp(/(^|\s)/.source + quotesSource),
- lookbehind: true,
- greedy: true,
- },
- 'punctuation': /\\$/m,
- 'boolean': {
- pattern: /^(?:false|no|off|on|true|yes)$/,
- greedy: true
- }
- }
- },
- 'punctuation': /=/
- };
- }(Prism));
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